Mechanical movement



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2 Sheets-Sheet 1. s. LAKE.

MECHANICAL MOVEMENT.,

Patented May 24, 1887i.

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No. 3633172. Patented May 24', 1887. 7 FL 2 l f I i (Ir/D I @Wtmom x MUM#1 W' I v v PETERS Phalo-Lflhngrfkphev. wuhin ton. n C

UNITED STATES PATENT ClFFICE.

SIMON LAKE, OF OCEAN CITY, NEW JERSEY.

-MECHANlCAL MOVEMENT.

EPECIFICATION forming part of Letters Patent No. 363,472, dated May 24,1887. Application filed August 5, 1886. sci-m1 No. 210,111. (No modeLlTo all whom it may concern:

Be it known that I, SIMON LAKE, a citizen of the United States, residingat Ocean City, in the county of Cape May and State of New Jersey, haveinvented certain new and useful Improvements in Mechanical Movements;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilledin theart to which it appertains to make and use the same, referenoe being hadto the accompanying drawings, and to the letters and figures ofreferenee marked thereon, which form a part of this specification.

My invention has relation to mechanical movements; and the object of thedevice is to provide a mechanical device which may be readily and simplyoperated to apply the power to the driven shaft in such a manner thatthe strain or reaction from the driven parts will be prevented fromaffecting the prime motor. I

To'this end the novelty consists in the construction, combination, andarrangement of parts, as will be more fully hereinafter described, andparticularly pointed out in the claims.

In the accompanying drawings the same letters of reference indicate likeparts of my invention.

Figure 1 is a top plan view of my mechani' cal movement. Fig. 2 is asectional view on the line at as, Fig. 1; and Fig. 3 is a modificationof the same, the working parts being the same; but the handle or leveris extended on each side of the fulcrum, so that both handles may beused for operating, instead of one, as in the first instance.

A represents a stationary cylinder, which is suitably secured in a rigidposition to any convenient part of the frame.

B represents the end of the shaft or other part to which the power is tobe applied, and said end B turns freely in the cylinder A.

O O are taper keys adjustably secured in slots 0 c by means of screws oc, and D D are bearing-blocks, likewise located in said slots and havingtheir forward ends semicircular in shape to correspond to and form seatsfor the friction-pawls E E, the outer curved ends of which form theperiphery of a circle at a tan gent to the inner surface of the cylinderA. These two pawls E are connected by aspiral spring, 0, which tends todraw them together until their adjoining ends or that point of theirouter ends marked a is in contact with the inner surface .of theperiphery of the cylinder A. 1

F is a lever pivoted or fulerumed by the screw-bolt f to the end -of theshaft 13, and

extending diametrically a suitable distance across and beyond theoutside of the cylinder. G G are lugs 011 the shaft 13, between whichthe lever F plays, and I I are arms on the le-.

eral movement in the cylinder by reason of the pawls engaging the same.If, however, the shaft is to be moved, say, in the direction of thearrow, the lever is pushed in that direction, and the arm on that sidefirst pushes the forward pawl ahead, so as to release it from thecylinder, and the lever then comes in contaet with the forward lug, andof course the shaft is moved forward as far as necessary. At the sametime the forward pawl is released the rear pawl is undisturbed, therebylocking the shaft against any backward strain, and it will be observedthat as the shaft is intermittently moved forward the rear pawl followsup and locks the shaft in whatever position it may be left. It will alsobe observed that should the strain on the shaft be reversed or come inthe opposite direction the forward pawl would then look it in the samemanner as in the first instance. Of course the lever and shaft may bemoved in the opposite direction to that indicated by the arrow.

The modification, Fig. 3, shows the lever extending across and on bothsides of the shaft, whereby it may be the more conveniently grasped byboth hands for operatin From the above it will be seen that the deviceis extremely simple, and can be employed.

wherever a crank or lever power is required to sustain a weight orpressure in one or both directions without the strain coming on theleveras, for instance, in steering apparatus, capstans, windlasses, andall forms of'hoisting devices; also, for the steering-gear of bicyclesand tricycles, road-engines, and, in fact, in any class of machineryusing a power-controlling device. Of course it will be seen that shouldthe outer surface of the pawls wear they may be adjusted outwardly bymeans of the taper key and screw. This can be done either by forcing thewedge nearer the lower end of its socket or by providing its upper endwith a slot through which the screw is passed.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent of the United States, is

1. The combination, with a cylinder or easing, of a shaft located withinsaid cylinder, and mechanism, as described, whereby the said shaft maybe freely moved in either di rection and automatically locked againstany reactionary strain or pressure, as set forth.

2. The combination, with the cylinder, the shaft, and the pawls ordetents carried by the shaft, of the lever arranged to operate the pawlsand shaft, as set forth. I

3. The combination, with the cylinder, of the shaft provided with lugs,the pawls, a connecting-spring, and thelever fulcru med to the shaft, soas to be capable of' a movement in advance of the shaft, and armsarranged to operate the pawls before said lever operates the shaft, asset forth.

4. The combination, with the lever, the cylinder, and the shaft, of thepawls adjustably held in the end of the shaft, whereby they may be movedtoward the cylinder, substantially as set forth.

5. The combination of the cylinder, the shaft having the lugs, thelever, the pawls, the bearingbloclcs, and the tapered keys, all arrangedand operating substantially as herein described and shown.

SIMON LAKE.

Wit n csses:

R. W. BISHOP, H. J. ENNIS.

